Cloud

Learn cloud infrastructure from the ground up. Practical guides on AWS, Google Cloud, and Azure covering object storage, compute, IAM, and architecture patterns used in production.

10 articles

What is a CDN? How CloudFront and Cloudflare Work Under the Hood
Cloud

What is a CDN? How CloudFront and Cloudflare Work Under the Hood

Understand how CDNs work at the edge: PoPs, Anycast vs GeoDNS, cache behaviors, Origin Shield, invalidation strategies, and a detailed CloudFront vs Cloudflare comparison with pricing.

9 min read·
Understanding Availability Zones and Regions: A Practical Guide
Cloud

Understanding Availability Zones and Regions: A Practical Guide

Learn what Availability Zones and regions are physically, how to design for AZ redundancy, which services are zone-scoped vs region-scoped, and what SLA documents actually guarantee.

8 min read·
Cloud Cost Optimization: Practical Strategies That Actually Work
Cloud

Cloud Cost Optimization: Practical Strategies That Actually Work

Reduce your cloud bill with actionable strategies: rightsizing, Savings Plans, S3 lifecycle policies, data transfer optimization, and cost management tools that deliver real results.

8 min read·
Serverless vs Containers: Choosing the Right Compute Model
Cloud

Serverless vs Containers: Choosing the Right Compute Model

Compare serverless (Lambda, Cloud Run) and containers (ECS, EKS, Fargate) on cold starts, pricing, scaling, vendor lock-in, and local development. Learn when to use each compute model.

8 min read·
Multi-Region Architecture: When and How to Go Global
Cloud

Multi-Region Architecture: When and How to Go Global

Learn when multi-region architecture is worth the complexity and how to implement active-passive and active-active patterns with database replication, global routing, and failover testing.

8 min read·
What is Infrastructure as Code? Terraform vs Pulumi vs CDK Compared
Cloud

What is Infrastructure as Code? Terraform vs Pulumi vs CDK Compared

Compare Terraform, AWS CDK, and Pulumi for Infrastructure as Code. Covers languages, state management, multi-cloud support, pricing, and practical guidance on choosing the right tool.

7 min read·
Spot Instances Explained: How to Save 90% on AWS Compute
Cloud

Spot Instances Explained: How to Save 90% on AWS Compute

Learn how AWS Spot Instances work, when to use them, and how to architect for interruption. Covers pricing, Spot Fleet, mixed ASGs, checkpointing, and real cost comparisons.

8 min read·
IAM Roles vs Policies: AWS Permissions Without the Headache
Cloud

IAM Roles vs Policies: AWS Permissions Without the Headache

Understand AWS IAM roles, policies, users, and groups. Learn how the policy evaluation engine works, when to use identity-based vs resource-based policies, and how to implement least privilege.

8 min read·
VPCs Explained: How Virtual Private Clouds Actually Work
Cloud

VPCs Explained: How Virtual Private Clouds Actually Work

A practitioner's guide to Virtual Private Clouds covering subnets, route tables, gateways, security groups, NACLs, and VPC peering across AWS, GCP, and Azure.

8 min read·
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